Akai DR16 pro

17: Appendix
Page 146
IB -808G Block Diagram
GPIO OPTION BOARD BLOCK DIAGRAM
DATAOUT DATAOUT
ON/OFF
RELAY
DD8 + 5V DATA IN DD8(GPIO OPTION BOARD)
EXT. SW0 EXT. SW1 GPO12 GPO PULLUP GPO1~11 GPO COMMON ISOLATED +V5 COMMAND COMMON GPI 1~16
DD8 GND
5V 5V
GND GND
ISOLATED
5V SUPPLY
EXT. DEVICE
GND
EXTERNAL DEVICE
1~12, 35~37
33 13
16, 19, 28
20~27,
17~18, 14
34 15 32 31